Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Algae Concentration and Harvesting Method Based on Polymer-Surfactant Binary Micro-Nano Structure

A technology of surfactant and micro-nano structure, which is applied in the field of concentrated harvesting of algae based on polymer-surfactant binary micro-nano structure, can solve the problems of long harvesting process, high operating cost, complicated operation, etc. Harvesting process, enhanced van der Waals forces, high mechanical strength effects

Active Publication Date: 2020-08-21
TSINGHUA UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in the existing algae biomass harvesting process being long, complicated to operate, and high in operating costs (accounting for about 30% of the production cost of algae biomass)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Algae Concentration and Harvesting Method Based on Polymer-Surfactant Binary Micro-Nano Structure
  • Algae Concentration and Harvesting Method Based on Polymer-Surfactant Binary Micro-Nano Structure
  • Algae Concentration and Harvesting Method Based on Polymer-Surfactant Binary Micro-Nano Structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The binary system of PAA and CPC was used to harvest Chlorella pyrenoidosa ZTY4. Before harvest, the biomass concentration of Chlorella ZTY4 in the culture medium was 1.43 g / L. Add 150ppm PAA and 1.5mM CPC to the culture medium, stir continuously with a magnetic stirrer at a speed of 200rpm for 20min, pour the mixture into a separatory funnel, and let it settle for 25min. The result is as follows: figure 2 shown. It can be seen that the dense flocs have completely settled at the bottom of the separatory funnel, and there are almost no suspended algal cells in the supernatant. Sampling and determination of the algae biomass concentration in the supernatant was only 0.12g / L, that is, the harvesting efficiency of the PAA and CPC binary system to Chlorella ZTY4 can reach 91.6%. Use a 100 μm coarse filter membrane to intercept and harvest the flocs at the bottom of the separatory funnel, weigh them, then place them at 60°C to dry to constant weight, and weigh them again. ...

Embodiment 2

[0042] Synechococcus 7002 was harvested using PEI and SDS binary system. Before harvesting, the biomass concentration of Synechococcus 7002 in the culture solution is 1.26g / L, and the culture solution is as image 3 shown on the right. Add 80ppm PEI and 0.8mM SDS to the culture solution, stir continuously with a magnetic stirrer at a speed of 200rpm for 20min, and directly intercept and harvest the flocs formed by a coarse filter membrane. The obtained filtrate is as follows: image 3 shown on the left. The concentration of algal biomass in the filtrate was measured by sampling, and it was only 0.08g / L, that is, the harvesting efficiency of Synechococcus 7002 by the binary system of PEI and SDS could reach 93.6%. The moisture content of the harvested biomass measured by the same method as in Example 1 was only 65.4%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for concentrating and harvesting algae based on a polymer-surfactant binary micro-nanostructure. The method comprises the following steps: dosing a group of polymer and surfactant having opposite electric properties into algal biomass; and coupling under the effect of electrostatic attraction. Compared with a traditional algal harvesting process, including centrifuging, filtering, coagulating sedimentation and the like, the method has the advantages of relatively low cost and energy consumption, can be used for efficiently concentrating algae without further dehydrating process, so that the harvesting process of algae can be greatly simplified.

Description

technical field [0001] The invention belongs to the technical field of algae biomass harvesting, in particular to an algae harvesting method capable of achieving extremely high concentration efficiency, in particular to an algae concentration harvesting method based on a polymer-surfactant binary micro-nano structure. Background technique [0002] Algae biomass can be used to produce biomass energy such as biodiesel, bioethanol, and biogas. Some algae cells are rich in astaxanthin, polyunsaturated fatty acids and other substances that can be used to produce health food. On the other hand, cyanobacteria blooms caused by eutrophication destroy the ecological balance of natural water bodies, threaten human health, and cause serious losses to society and economy. [0003] Whether it is the use of algal biomass to produce energy or other high-value products, or the management of cyanobacterial blooms, the problem of concentrating and harvesting algal cells from dilute solutions n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/12C12N1/20C12R1/89
CPCC12N1/12C12N1/20
Inventor 巫寅虎胡洪营庄林岚
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com